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Thread: spark plug recommendations

  1. #1
    Badab!nG is offline Cadillac Owners Member
    Automobile(s): 2008 CTS4
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    spark plug recommendations

    Any spark plug recommendations by anyone here for an 08 CTS4 DI??


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  3. #2
    MoFex's Avatar
    MoFex is offline Cadillac Owners Connoisseur
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    Re: spark plug recommendations

    How many miles on the odometer? If less than 100,000 I would not touch it unless you have a problem.

    You cannot go wrong with OEM spark plugs. They were designed to work in your car.......

  4. #3
    Badab!nG is offline Cadillac Owners Member
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    Re: spark plug recommendations

    Only 56.500 on the odometer. I'll be installing an Ice-o-lator and figured I'll be right there. Easier to do it while the intake is apart.

  5. #4
    tinman's Avatar
    tinman is offline Cadillac Owners Master
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    Re: spark plug recommendations

    Yes, you might as well.

    I'm not familiar with what type of plug is standard in our engines, but I have always been partial to NGK personally.

    Don't use the Bosch with the extra electrodes. They have been known to break off and get in your cylinder as documented on the 300MClub website (I was quite active over there).

  6. #5
    Kenny9123 is offline Cadillac Owners Member
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    E3 makes an excellent plug if you're will to pay a little bit extra on the plug. E3.66 part#

  7. #6
    Badab!nG is offline Cadillac Owners Member
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    Re: spark plug recommendations

    I ended up getting the 41-990 AcDelco Platinums plugs.

  8. #7
    MoFex's Avatar
    MoFex is offline Cadillac Owners Connoisseur
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    Re: spark plug recommendations

    Quote Originally Posted by Badab!nG View Post
    I ended up getting the 41-990 AcDelco Platinums plugs.
    Good choice. You cannot go wrong with the OEM.


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